Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8520195 | Method and system for estimating fluid leak flow rates using distributed optical fiber sensors | Andrew Strong, Gareth Lees | 2013-08-27 |
| 8074713 | Casing collar locator and method for locating casing collars | Nigel Leggett | 2011-12-13 |
| 8058071 | Downhole spectroscopic hydrogen sulfide detection | Li Jiang, Oliver C. Mullins, Gale Gustavson, Christopher Harrison, Bhavani Raghuraman +5 more | 2011-11-15 |
| 8040250 | Retractable sensor system and technique | — | 2011-10-18 |
| 7959864 | Downhole spectroscopic hydrogen sulfide detection | Li Jiang, Oliver C. Mullins, Gale Gustavson, Christopher Harrison, Bhavani Raghuraman +5 more | 2011-06-14 |
| 7900699 | Method and apparatus for logging a well using a fiber optic line and sensors | Nigel Leggett | 2011-03-08 |
| 7854267 | Methods and systems to activate downhole tools with light | David R. Smith, Arthur H. Hartog, Vladimir Vaynshteyn | 2010-12-21 |
| 7720325 | Optical turnaround system | Harini Varadarajan, Scott A. Rubinstein | 2010-05-18 |
| 7703517 | Downhole sampling tool and method for using same | Jeffrey A. Tarvin, Julian Pop, Simon Bittleston, Angus J. Melbourne | 2010-04-27 |
| 7693376 | Apparatus and method for preventing unwanted exposure of a device to an undesirable substance | Barry Read | 2010-04-06 |
| 7634168 | Apparatus and method for forming an optical fiber device | — | 2009-12-15 |
| 7603009 | Double-ended distributed temperature sensing systems | — | 2009-10-13 |
| 7593115 | Determining a length of a carrier line deployed into a well based on an optical signal | Vladimir Hernandez-Solis, Joseph Varkey | 2009-09-22 |
| 7496248 | Optical turnaround system | Harini Varadarajan, Scott A. Rubinstein | 2009-02-24 |
| 7469746 | Downhole sampling tool and method for using same | Jeffrey A. Tarvin, Julian Pop, Simon Bittleston, Angus J. Melbourne | 2008-12-30 |
| 7430903 | Fluid flow measurement using optical fibres | — | 2008-10-07 |
| 7428350 | Optical turnaround system | Harini Varadarajan, Scott A. Rubinstein | 2008-09-23 |
| 7347262 | Downhole sampling tool and method for using same | Jeffrey A. Tarvin, Julian Pop, Simon Bittleston, Angus J. Melbourne | 2008-03-25 |
| 7215416 | Method for measuring using optical fiber distributed sensor | Tsutomu Yamate, Robert J. Schroeder, Oliver C. Mullins | 2007-05-08 |
| 7155101 | Manufacturing method for high temperature fiber optic accelerometer | Jagdish Shah, Olivier Sindt, Philip Dryden, Cliff Evans, Mark Dalton | 2006-12-26 |
| 7126680 | Method for measuring and calibrating measurements using optical fiber distributed sensor | Tsutomu Yamate, Robert J. Schroeder, Oliver C. Mullins | 2006-10-24 |
| 6994167 | Method and system for cement lining a wellbore | Christian Besson, Andrew Hunt | 2006-02-07 |
| 6946645 | Measuring system with sweeping comb filter and multiplexer | Jeffrey A. Tarvin, Robert J. Schroeder, Tsutomu Yamate | 2005-09-20 |
| 6898339 | Multiple mode pre-loadable fiber optic pressure and temperature sensor | Jagdish Shah, Robert J. Schroeder, Philip Dryden, Raghu Madhavan | 2005-05-24 |
| 6751556 | Technique and system for measuring a characteristic in a subterranean well | Robert J. Schroeder, Jeffrey A. Tarvin, George A. Brown | 2004-06-15 |